SPRAY 16 sections of plastic ice cube trays with cooking spray. Add boiling water to combined gelatin mixes in medium bowl; stir 2 min. until completely dissolved. (Do not add cold water.) Pour into prepared ice cube trays.
REFRIGERATE 3 hours or until firm.
UNMOLD JIGGLERS. Thread 1 each JIGGLERS and blackberry onto each of 16 thin wooden skewers for the spider's head and body. Insert licorice pieces into JIGGLERS for the legs. Add candy pieces for the eyes, gently pressing into JIGGLERS to secure.